There are no brand markings on this part. The window is more then 10 years old and I don't know what brand it is, but the company may be out of business. Picture number 3 is one that still works. I am looking for a replace part.
Thanks. Barb
Tom from SWISCO responded:
March 7, 2014
Thanks for posting, Barb. Please see our 39-258 and 39-259 and see if either of these could work for you.
A home owner from Hawaii says:
March 7, 2014
This looks like it will work. Thank you. I will order one and check it out.